<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    {{msg}}
  </div>
</body>
<script src="./vue.js"></script>
<script>
const vm = new Vue({
  el:"#app",
  data:{
    msg: 'hello vue'
  }
})
</script>
</html>